问题描述：
[单选]
The cross-head shoes are white metal（）．
A．lining
B．lined
C．made
D．i
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：The cross-head shoes are white metal lined， grooves being cut horizontally on the face of the white metal to ensure（）．
下一篇：The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating（）．
- 我要回答: 网友(216.73.216.42)
- 热门题目: 1.航行中对发电柴油机曲轴的断裂 2.航行中，主柴油机发生拉缸事故 3.除工艺原因外，柴油机气缸套与